How do I defined a global variable that I can use across blocks of code?
In my case, I need to declare my global var within an included header.php and then I need to be able to use it within another included file.
Ultimately, I'd like to be able to access it anywhere since it changes. And it's not sensitive information... just a number.
Just use the global keyword to modify the variable's score. It doesn't matter if you reference the variable in a file that is included, you just need to use the global keyword.
In header.php:
$var = 'Something';
In included_file.php:
function a()
{
global $var;
echo $var;
}
echo $var; // Will print 'something'
a(); // Prints 'Something'
Alternatively, you can use the $GLOBALS array.
Finally, if it's static and not going to change, you can define constants:
define('MY_NUMBER', 10);
echo MY_NUMBER; // Outputs 10
